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Author Title Year Publication (up) Serial Volume Pages
Povinelli DJ; Parks KA; Novak MA Do rhesus monkeys (Macaca mulatta) attribute knowledge and ignorance to others? 1991 J. Comp. Psychol. 3032 105 318
Garott, R.A. Sex Ratios and Differential Survival of Feral Hors 1991 Journal of Animal Ecology 2294 60 929-936
Houpt, K.A. Investigating equine ingestive, maternal, and sexual behavior in the field and in the laboratory 1991 Journal of Animal Science 667 69 4161-4166
Krzak, W.E.; Gonyou, H.W.; Lawrence, L.M. Wood chewing by stabled horses: diurnal pattern and effects of exercise 1991 Journal of Animal Science 1949 69 1053-1058
Duncan, I.J.; Petherick, J.C. The implications of cognitive processes for animal welfare 1991 Journal of Animal Science 2753 69 5017-5022
Curtis, S.E.; Stricklin, W.R. The importance of animal cognition in agricultural animal production systems: an overview 1991 Journal of Animal Science 2754 69 5001-5007
Kendrick, K.M. How the sheep's brain controls the visual recognition of animals and humans 1991 Journal of Animal Science 2940 69 5008-5016
Houpt, K.A.; Northrup, N.; Wheatley, T.; Houpt, T.R. Thirst and salt appetite in horses treated with furosemide 1991 Journal of applied physiology (Bethesda, Md. : 1985) 38 71 2380-2386
Pepperberg, I.M.; Brezinsky, M.V. Acquisition of a relative class concept by an African gray parrot (Psittacus erithacus): discriminations based on relative size 1991 Journal of Comparative Psychology 3610 105 286-294
Schwarzenberger, F.; Mostl, E.; Bamberg, E.; Pammer, J.; Schmehlik, O. Concentrations of progestagens and oestrogens in the faeces of pregnant Lipizzan, trotter and thoroughbred mares 1991 Journal of reproduction and fertility. Supplement 322 44 489-499